### Added - Logger class - getLogger(name) - Module-level logging helpers (`info`, `debug`, `success`, `warning`, `error`, `fatal`) - Log levels (0-5) and `setLevel` filtering - New module `dlf4p/utils.py` - Test script `test/main.py` - CONTRIBUTING.md ### Changed - Added type annotations in logger API - Exported `Logger` from `dlf4p/__init__.py` - Fixed internal imports to use package-relative paths - Update README.md